Download What is a Cell?

What is a Cell?
Use the website below to answer the questions.
http://www.scsc.k12.in.us/SMS/Teachers/Martin/replacementlink.htm
What is a cell?
All living things are made up of _________________. Each cell is a sort of bag made from a
sort of skin called a _________________________. The inside of the cell is ________________
and jelly-like. You can’t see them just using you eyes. You need a _______________________.
A cell can be considered the smallest part of an ________________________ that can
___________________ on its own. Some organisms have only ___________ cell, while more
complicated organisms are made out of lots of cells. All cells have a ___________________,
which separates them from the outside world. The membrane ____________________ the cell
and allows the cell to be selective about what is allowed __________. (Click next at bottom of
web page.)
Are all cells the same?
Plant cells are _____________________ than animal cells. Plant cells in a ____________ are
different to those in the stem or in the ___________. Animal cells, including the cells in our
bodies, are all sorts of different ______________ and sizes. Different cells _____________
different things.
Give examples of two different types of cells and their jobs below.
1.
2.
Despite all the differences between types of cells, there are also ________________________.
All cells have _______________________. All cells contain __________ for storing
information and ___________ for building proteins. (Click next at bottom of web page.)
Where do new cells come from?
When the time is right, an animal cell or a plant cell _________________ into two, forming new
cells called __________________ cells. The two new cells are _________________ the same as
the original cell. This process is called ____________ ___________________.
Although a cell is small, it is not stupid – before it _____________________ it makes an extra
copy of everything in the ____________________. This means the two daughter cells have a
__________________ nucleus. This is important because the nucleus contains the
“_______________” (DNA) which is used to tell the cell what to do. They do share the
_______________________ but they can make more of that and end up the same size as their
______________________ cell. (Click next at bottom of web page.)
What is a single-celled animal?
A single-celled animal is an animal cell that lives on its ______________, without other cells. It
can move around. It can get its own _______________. It gets rid of __________________. It
divides to make more cells. It can tell something about what is happening around it. The single
cells of a _______________________ animal could not do this. They need to live
________________________ by lots of other cells. (Click next at bottom of web page.)
What is a single-celled plant?
A single-celled plant, such as an ____________________, is a plant cell that lives on its
__________. It does not need to be a part of a larger plant ______________________. Algae
always live in ________________. (Click ‘go back to worksheet menu’ at bottom of web page.)